KR200150343Y1 - The handle length control device of the clean instrument - Google Patents

Abstract

The present invention relates to a length adjusting device of a handle for a cleaning tool for changing the length of the handle according to the position of the object to be cleaned and then fixing the handle so that the length of the handle is not variable, more specifically, one operation By dismantling the fixed state of the handle, or to be able to fix.

To this end, a small diameter portion 9a and a large diameter portion b are provided so that the cam 9 is fixed to the fixed rod 6a and the outer circumferential surface is inserted into the movable rod 6b to have a predetermined interval. The inner circumferential surface is provided with a first flesh 10a and a second flesh 10b so as to surround the small diameter portion and the large diameter portion of the cam, and is closely connected to the inner diameter surface of the movable rod 6b while being expanded according to the rotation of the cam. It consists of a movable piece 10 having a constant distance from the inner diameter surface of the movable rod by being retracted by the restoring force.

Description

Length adjusting device of cleaning tool

1 is an exploded perspective view showing a conventional device.

Figure 2 is a longitudinal cross-sectional view showing a state of engagement of FIG.

3 is a cross-sectional view taken along the line A-A of FIG.

Figure 4 is an exploded perspective view showing an embodiment of the present invention.

Figure 5 is a longitudinal cross-sectional view of the engaged state of Figure 4, a is a state in which the length of the handle is adjustable, b is a cross-sectional view of the fixed length of the handle.

Figure 6 is an exploded perspective view showing another embodiment of the present invention.

Figure 7 is a longitudinal cross-sectional view of the engagement state of Figure 6, a is a state in which the length of the handle is adjustable, b is a state in which the handle is fixed length.

Figure 8 is an exploded perspective view showing another embodiment of the present invention.

9 is a longitudinal cross-sectional view of the engagement state of Figure 8, a is a state in which the length of the handle is adjustable, b is a state in which the handle is fixed length.

* Explanation of symbols for main parts of the drawings

6: handle 6a: fixed rod

6b: movable rod 9: cam

9a: small diameter part 9b: large diameter part

9e: Jam Jaw 10: Moving Piece

10a: 1st year 10b: 2nd year

10c: protruding jaw

The present invention relates to a length adjusting device of a handle for a cleaning tool for changing the length of the handle according to the position of the object to be cleaned and then fixing the handle so that the length of the handle is not variable, more specifically, one operation By dismantling the fixed state of the handle, or to be able to fix.

1 is a perspective view showing an exploded view of an example of a cleaning tool, which is a window cleaner, which is divided into a main body (1) (2) and fastened with a screw (3), and on one side of the main body. Sponge (4) is fixed by the pressing protrusion (not shown) and contains water during cleaning to remove stains on the glass surface, and the other surface of the main body is fixed to the sponge (4) It is composed of a water removal member (5) for removing the handle, and a handle (6) fixed to the bottom of the main body to hold the worker during the cleaning operation.

The handle 6 fixed to the bottom of the main body 1 should be configured to adjust the length according to the height of the glass window to be cleaned.

Accordingly, the fixing device is provided so as not to be changed in the state of adjusting the length.

Conventionally, as shown in FIGS. 1 to 3, a plurality of cutouts 7a are formed in the longitudinal direction, and a fixing member 7 having a male screw 7b formed on an outer circumferential surface thereof is coupled to the fixing member by screwing. And the tightening screw 8 having the inclined surface 8a formed thereon in order to tighten the cutout part in turn is inserted into the main body 2 and the fixed rod 6a fixed thereto, and the lower end is expanded to tighten the fixing member 7. The screw 8 is prevented from coming off the fixing rod 6a.

Therefore, when the glass window is to be cleaned using the windshield wipe, the length of the handle 6 should be properly adjusted according to the size and height of the glass window. For this purpose, the fixing state of the handle 6 should be released.

Loosen the tightening screw 8 that has been screwed to release the fixed state of the handle 6, the inclined surface 8a is separated from the inclined surface 7c of the fixing member 7, so that the fixing member 7a By the elastic force of the self) is opened as shown in FIG.

Accordingly, a gap G is generated between the outer diameter surface of the fixing rod 6a and the inner diameter of the fixing member 7, so that the movable rod 6b can be pulled out or inserted from the fixing rod 6a.

After adjusting the length of the handle 6 properly by the above operation, in order not to be variable, it is necessary to retighten the loosening screw 8 again.

Accordingly, the inclined surface 8a formed on the inner surface of the tightening screw 8 moves along the inclined surface 7c formed on the fixing member 7 to press the cutout portion 7a, thereby fixing the inner diameter surface of the fixing member 7. It is in close contact with the outer diameter surface of the rod (6a) does not change the length of the handle when the window cleaning work.

However, the window cleaner provided with such a conventional device has the following problems.

First, if you want to change the length of the handle (6) must loosen the tightening screw (8) several times, and then adjust the length and then tighten the loosening screws again, the adjustment of the handle length is cumbersome.

Second, since the inclined surfaces (7c) (8a) are shifted with each other as the tightening screw (8) moves, tightening the cutout portion (7a), when the tightening force is weak, the fixed state is unstable and the length of the handle is variable when cleaning the window On the contrary, when the tightening force is strong, a lot of force is required when adjusting the length.

Third, because the fixing means is exposed to the outside of the handle (6) is to damage the appearance.

The present invention has been made to solve such a problem in the prior art, the object of the present invention is to be able to simply vary the length of the handle by one operation using the principle of the cam.

The object of the present invention described above is a handle for a cleaning tool that is separated into a fixed rod (6a) and a movable rod (6b), is fixed to one side of the fixed rod (6a) and the small diameter portion (9a) and large diameter portion (9b) And a cam 9 having a circular shape so as to have a predetermined interval in the state of being inserted into the movable rod 6b, and on the inner surface thereof, a small diameter portion 9a and a large diameter portion 9b of the cam 9 are provided. 1) includes a movable piece (10) having a first rib (10a) and a second rib (10b) formed to enclose), and as the cam (9) rotates, the temporary piece (10) expands or contracts. For example, it is achieved by the length adjusting device of the handle for the cleaning tool, characterized in that the close contact with the inner diameter surface of the movable rod (6b) or by maintaining a constant interval, the length of the handle can be adjusted.

Hereinafter, the present invention will be described in more detail with reference to FIGS. 4 and 5 of the accompanying drawings as an example.

4 is an exploded perspective view showing an embodiment of the present invention, and FIG. 5 is a longitudinal cross-sectional view of the coupled state of FIG. 4. The present invention is a cam 9 having a small diameter portion 9a and a large diameter portion 9b. Flange portions 9c are formed at both sides, and protruding bosses 9d fixed to the fixed rods 9a are formed at one side thereof.

And it is installed to surround the small diameter portion (9a) and the large diameter portion (9b) is expanded in accordance with the rotation of the cam 9 is in close contact with the inner diameter surface of the movable rod (6b), or retracted by the restoring force to the inner diameter surface of the movable rod In the movable piece 10 having a predetermined interval with the outer peripheral surface is formed in a circular shape with a constant interval in the state inserted into the inside of the movable rod 6b, the inner peripheral surface is the first (10a) and the second (10b) of the cam It is provided.

4 and 5 show an embodiment of the present invention so that the small diameter portion 9a and the large diameter portion 9b of the cam 9 are connected to each other in the forward and reverse rotation of the movable rod 6b. The movable rod 10b is processed from the fixed rod 6a because the movable piece 10 is expanded by connecting the neck portion 9b to the second rib 10b side.

However, in this case, in order to release the fixed state, as shown in FIG. 5a, the large diameter portion 9b must be exactly matched with the first flesh 10a to change the length of the handle 6, and thus, the fixed rod 6a and the movable rod 6b. ) Should be marked with scales 11a and 11b to identify that the large diameter portion 9b and the first year 10a are exactly the same, but are not necessarily limited thereto.

This forms a locking jaw 9e on the small diameter portion 9a and the large diameter portion 9b of the cam 9 as shown in FIGS. 6 and 7 shown in another embodiment, and the movable piece 10 In the case of forming the protruding jaw 10c corresponding to the locking jaw, a scale for identifying that the large diameter portion 9b and the first flesh 10a are exactly coincident on the movable rod 6b and the fixed rod 6a is formed. You do not have to display it.

When the cam 9 is rotated in the direction in which the engaging jaw 9e and the projecting jaw 10c are spaced apart from each other, the movable piece 10 is extended to fix the movable rod 6b from the fixed rod 6a. On the contrary, when the cam 9 is rotated in a state in which the locking jaw 9e and the projection jaw 10c are connected, the movable piece 10 does not expand and idling together with the cam 9.

8 and 9 of the accompanying drawings, as another embodiment of the present invention, the locking jaw (9e) is formed symmetrically on the small diameter portion (9a) and the large diameter portion (9b) of the Chem (9) and the movable piece 10 In the case of forming the protruding jaw 10c corresponding to each of the engaging jaws, the fixing and releasing operations of the movable rod 6b are more surely performed.

Although the cam 9 is fixed to any part of the fixing rod 6a, the same operation is performed, but it is preferable to fix the cam 9 to the end of the fixing rod 6a in order to maximize the workability and the length of the handle. .

Although the material of the cam 9 and the movable piece 10 need not be limited, it is more preferable that the cam 9 and the movable piece 10 are formed of a synthetic resin material for mass production and reduction of production cost.

Referring to the operation, effects of the present invention configured as described above are as follows.

First, in the exemplary embodiment shown in FIG. 4, the protrusion boss 9d of the cam 9 is fitted to the end of the fixing rod 6a to be crimped or fixed by an adhesive or the like, so that the flange portion of the cam 9 ( After coupling the movable piece 10 to be wrapped between 9c), the cam wrapped with the movable piece is inserted into the inner diameter of the movable rod 6b. After the fixing rod 6a having the cam 9 fixed therein is engaged in the movable rod 6b, the first rib 10a is connected to the large diameter portion 9b as shown in FIG. 5a, and the small diameter portion 9a is connected to the small diameter portion 9a. Since the second rib 10b is connected and the outer circumferential surface of the movable piece 10 maintains a constant distance from the inner diameter surface of the movable rod 6b, the length of the movable rod 6b can be varied.

Accordingly, the holding rod 6a is held by one hand and the movable rod 6b is held by one hand while the position of the movable rod 6b is properly adjusted according to the position of the glass window to be cleaned. Slightly twisted in the direction, the large diameter portion 9b formed on the cam 9 is rotated toward the second rib 10b to extend the movable piece 10 in the circumferential direction as shown in FIG. 5b, so that the outer peripheral surface of the movable piece is movable rod ( It is closely connected with the inner diameter surface of 6b).

On the other hand, if you want to readjust the length of the handle (6) variable in length, the cam 9 is rotated slightly in the clockwise direction in the same state as the 5b degree, the large diameter portion (9b) and the first flesh (10a), When the small diameter portion 9a is aligned with the scales 11a and 11b displayed on the outer circumferential surface of the fixed rod 6a and the movable rod 6b such that the small diameter portion 9a is in contact with the second rib 10b, the movable piece 10 is as shown in FIG. 5a. The elastic force is restored and the outer circumferential surface of the movable piece and the inner diameter surface of the movable rod 6b are maintained at a constant interval, so that the length of the handle can be freely adjusted.

Meanwhile, in FIGS. 6 and 7 shown in another embodiment, when the cam 9 is rotated counterclockwise, the movable piece 10 is expanded as shown in FIG. 7b by the large-diameter portion 9b as in the embodiment. Since the close contact with the inner surface of the movable rod (6a) to maintain the length of the handle is adjusted.

However, if you want to release the fixed state to readjust the length of the handle only need to rotate the cam (9) clockwise.

As a result, the engaging jaw 9e formed on the contact surface between the small diameter portion 9a and the large diameter portion 9b is hooked on the protruding jaw 10c formed on the movable piece 10 to continue the cam 9 in the clockwise direction. Unlike the embodiment, the movable piece 10 is not expanded but rotates with the cam even when rotated, so that the movable rod 6b is inserted from the fixed rod 6a or sunrise.

After changing the position of the movable rod 6b and then rotating the cam 9 counterclockwise again, in this case, the movable piece 10 extends to the outer circumferential surface as in the embodiment, and the inner diameter of the movable rod 6b is changed. Since it is closely connected to the surface, the length of the handle is maintained.

In another embodiment shown in FIG. 8 and FIG. 9, the same operation as in the other embodiment, in which case the engaging jaw 9e formed in the small diameter portion 9a and the large diameter portion 9b and the movable piece Since the protruding jaw 10c formed in 10 is formed symmetrically, the operation is performed more reliably.

The present invention operated as described above is illustrated and described as a handle of the window cleaner in one embodiment, it is understood that it can be usefully applied to mops and brooms, etc. without being limited thereto.

The present invention as described above has the following advantages.

First, when the length of the handle 6 is to be changed, the movable rod is fixed or released by a single operation of slightly twisting the movable rod 6b in a state of holding the fixing rod 6a with one hand. It is convenient to adjust the handle length.

Second, since the second piece 10b is pushed by the large-diameter portion 9b, and the movable piece 10 is extended and fixed, the fixing force becomes very strong and the movable rod 6b is rotated in the opposite direction to release the fixed state. All you have to do is adjust the length of the handle with little force.

Third, because the fixing device is not exposed to the outside of the handle 6, the appearance becomes beautiful.

Claims (4)

In the handle for the cleaning tool separated into a fixed rod (6a) and a movable rod (6b), the cam 9 is fixed to one side of the fixed rod (6a) and provided with a small diameter portion (9a) and a large diameter portion (9b) And a circular shape having a predetermined interval in the state of being inserted into the movable rod 6b, and having an inner surface of the first rod to surround the small diameter portion 9a and the large diameter portion 9b of the cam 9. And a movable piece 10 having a 10a and a second rib 10b formed thereon, and the movable piece 10 is extended or retracted by the rotation of the cam 9 so that the movable rod 6b of the movable rod 6b is formed. The length control device of the handle for cleaning tools, characterized in that the close contact with the inner diameter surface, or by maintaining a constant interval of the handle length adjustment. The projection jaw 10c of claim 1, wherein the locking jaw 9e is formed on the small diameter portion 9a and the large diameter portion 9b of the cam 9, and the movable piece 10 corresponds to the locking jaw. Forming device to adjust the length of the handle for the cleaning tool, characterized in that the movable piece 10 is idling when the cam (9) is rotated in the state in which the locking jaw and the projection jaw is connected. The method of claim 2, wherein the locking jaw (9e) is formed symmetrically on the small diameter portion (9a) and the large diameter portion (9b) of the cam (9) and the movable piece (10) protruding jaw corresponding to each of the locking jaw When the cam (9) is rotated in the state that the engaging jaw and the projection jaw is connected to form a (10c), the length of the handle for the cleaning tool handle, characterized in that for the idle rotation. The device according to any one of claims 1 to 3, wherein the cam (9) is fixed to the end of the fixing rod (6a).